Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 Nov 18;4(46):1039-1042.
doi: 10.46234/ccdcw2022.209.

An Outbreak of SARS-CoV-2 Omicron Subvariant BA.2.76 in an Outdoor Park - Chongqing Municipality, China, August 2022

Li Qi  1 , Wenge Tang  1 , Ju Wang  1 , Yu Xiong  1 , Yi Yuan  1 , Baisong Li  1 , Lin Yang  1 , Tingting Li  1 , Lianjian Yang  2 , Xiaoyuan Su  3 , Qin Li  1 , Lijie Zhang  4
Affiliations

An Outbreak of SARS-CoV-2 Omicron Subvariant BA.2.76 in an Outdoor Park - Chongqing Municipality, China, August 2022

Li Qi et al. China CDC Wkly. .

Abstract

What is already known about this topic?: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron subvariant has a stronger transmission capacity and faster transmission speed than the previous strain.

What is added by this report?: The first coronavirus disease 2019 (COVID-19) case infected with the SARS-CoV-2 Omicron subvariant BA.2.76 who caused local transmission was reported in Chongqing Municipality on August 16, 2022. For 35 minutes, the Patient Zero jogged along a lake at a local park without wearing a mask. Among the 2,836 people potentially exposed at the time, 39 tested positive. Overall, 38 out of 39 cases did not wear a mask on the morning of August 16. All 39 cases lacked any previous exposure to the variant before testing positive on their nucleic acid test.

What are the implications for public health practice?: It is essential to maintain personal wellbeing by ensuring one maintains personal protection and follows regulated guidelines such as maintaining safe distances from others both indoors and outdoors.

Keywords: COVID-19; Outdoor; SARS-CoV-2; Transmission.

PubMed Disclaimer

Conflict of interest statement

No conflicts of interest.

Figures

Figure 1
Figure 1
The distribution of sampling date for positive specimen in the outbreak of severe acute respiratory syndrome coronavirus 2 Omicron subvariant BA.2.76 in an outdoor park in Chongqing Municipality, China, August 2022.
See this image and copyright information in PMC

References

    1. Bulfone TC, Malekinejad M, Rutherford GW, Razani N Outdoor transmission of SARS-CoV-2 and other respiratory viruses: a systematic review. J Infect Dis. 2021;223(4):550–61. doi: 10.1093/infdis/jiaa742. - DOI - PMC - PubMed
    1. Szablewski CM, Chang KT, Brown MM, Chu VT, Yousaf AR, Anyalechi N, et al SARS-CoV-2 transmission and infection among attendees of an overnight camp - Georgia, June 2020. MMWR Morb Mortal Wkly Rep. 2020;69(31):1023–5. doi: 10.15585/mmwr.mm6931e1. - DOI - PMC - PubMed

    1. Leclerc QJ, Fuller NM, Knight LE, CMMID COVID-19 Working Group, Funk S, Knight GM. What settings have been linked to SARS-CoV-2 transmission clusters? Wellcome Open Res 2020;5:83. http://dx.doi.org/10.12688/wellcomeopenres.15889.2.

    1. Qian H, Miao T, Liu L, Zheng XH, Luo DT, Li YG Indoor transmission of SARS-CoV-2. Indoor Air. 2021;31(3):639–45. doi: 10.1111/ina.12766. - DOI - PubMed

    1. Sky News. Coronavirus: champions League match a 'biological bomb' that infected Bergamo, experts say. 2020. https://news.sky.com/story/coronavirus-champions-league-match-a-biological-bomb-that-infected-bergamo-experts-say-11963905....

LinkOut - more resources